Patents Assigned to U.S. Gypsum Company
  • Patent number: 8069633
    Abstract: A flooring system including horizontal metal framing members, for example, C-joists, U-joists, open web joists, HAMBRO or other metal frame systems that support a reinforced, lightweight, dimensionally stable SCP panel. The flooring system is non-combustible, water durable, mold and rot resistant, termite resistant and is capable of resisting shear loads equal to or exceeding shear loads provided by plywood or oriented strand board panels. The panels employ one or more layers of a continuous phase resulting from the curing of an aqueous mixture of inorganic binder, for example, calcium sulfate alpha hemihydrate, hydraulic cement, an active pozzolan and lime. The continuous phase is reinforced with glass fibers and contains lightweight filler particles, for example, ceramic microspheres.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: December 6, 2011
    Assignee: U.S. Gypsum Company
    Inventors: Timothy D. Tonyan, James M. Ullett, James E. Reicherts
  • Patent number: 8065852
    Abstract: A roofing system including horizontal or sloped metal framing members, for example, C-joists, U-joists, open web joists, or other metal frame systems that support a reinforced, lightweight, dimensionally stable SCP panel. The roofing system is non-combustible, water durable, mold and rot resistant, termite resistant and is capable of resisting shear loads equal to or exceeding shear loads provided by plywood or oriented strand board panels. The panels employ one or more layers of a continuous phase resulting from the curing of an aqueous mixture of inorganic binder, for example, calcium sulfate alpha hemihydrate, hydraulic cement, an active pozzolan and lime. The continuous phase is reinforced with glass fibers and contains lightweight filler particles, for example, ceramic microspheres.
    Type: Grant
    Filed: October 31, 2010
    Date of Patent: November 29, 2011
    Assignee: U.S. Gypsum Company
    Inventors: Timothy D. Tonyan, James M. Ullett, James E. Reicherts
  • Patent number: 8065853
    Abstract: This invention relates to a structural cementitious panel (SCP) panel able to resist lateral forces imposed by high wind and earthquake loads in regions where they are required by building codes. These panels may be used for shear walls, flooring or roofing or other locations where shear panels are used in residential or commercial construction. The panels employ one or more layers of a continuous phase resulting from the curing of an aqueous mixture of inorganic binder reinforced with glass fibers and containing lightweight filler particles. One or more reinforcement members, such as mesh or plate sheets, are bonded to at least one surface of the panel to provide a completed panel that can breathe and has weather resistant characteristics to be capable of sustaining exposure to the elements during construction, without damage.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: November 29, 2011
    Assignee: U.S. Gypsum Company
    Inventors: Timothy D. Tonyan, James E. Reicherts
  • Patent number: 8062741
    Abstract: A cementitious panel with ballistic and blast resistant properties having a core layer of ultra-high compressive strength composite and at least one skin layer. The panels can also be used in walls, ceiling and flooring panels which require high compressive strength for resistance to earthquakes and surfaces resistant to surface abuse such as in prison and other institutions. The panel core layer has a continuous cementitious phase resulting from the curing of an aqueous mixture, in the absence of silica flour, of inorganic cement binder, inorganic mineral filler having a particle size of about 150-450 microns, a pozzolanic mineral filler, polycarboxylate based superplasticizer, alkanolamine and acid or alkali metal acid salt; and water. The mixture may be uniformly reinforced with fiber added before curing. The cementitious core layer is then reinforced with the skin, such as fiber reinforced polymer, attached to at least one panel surface.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: November 22, 2011
    Assignee: U.S. Gypsum Company
    Inventors: Timothy D. Tonyan, William A. Frank, Ashish Dubey, Cesar Chan, Bartley P. Durst, Pamela G. Kinnebrew, Toney K. Cummins, Nicholas Boone, William F. Heard, Michael J. Roth, James L. Davis
  • Patent number: 8061108
    Abstract: A foundation system includes metal framing members that support a reinforced, lightweight, dimensionally stable cementitious panel. The foundation system is non-combustible, water durable, mold and rot resistant, and termite resistant. The panels employ one or more layers of a continuous phase resulting from the curing of an aqueous mixture of inorganic binder, for example, calcium sulfate alpha hemihydrate, hydraulic cement, an active pozzolan and lime. The continuous phase is reinforced with glass fibers and contains lightweight filler particles, for example, ceramic microspheres.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: November 22, 2011
    Assignee: U.S. Gypsum Company
    Inventors: Timothy D. Tonyan, James M. Ullett, James E. Reicherts
  • Patent number: 4281480
    Abstract: A doorframe assembly for hollow-wall partition construction is disclosed and comprises metal backer jamb members adapted for attachment to opposite sides of a door opening, a metal header member adapted for attachment to an upper horizontal side of a door opening, vinyl jamb members snap-engaged with the metal backer jamb members, a vinyl header cover snap-engaged with the metal header member, hinge plate means for supporting a door attached within a hinge plate recess along a wall portion of a vinyl jamb member at the hinge side of the door opening, strike plate means adapted for receiving lockset means attached within a strike plate recess along a wall portion of a vinyl jamb member at the lockset side of the door opening, wherein said assembly provides an easily installed, finished, and mortised construction.
    Type: Grant
    Filed: June 21, 1979
    Date of Patent: August 4, 1981
    Assignee: U.S. Gypsum Company
    Inventor: Alan C. Wendt